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Lawrence Berkeley National Laboratory seeks a Power Electronics Engineer in the Engineering Division to be matrixed to the Advanced Light Source (ALS) Synchrotron accelerator complex and will report to the ALS or ALS-U Electrical Engineering and Controls Lead at ALS.   

Engineering Department supports programs and projects throughout the prestigious LBNL laboratory and scientific experimental community. Created in 1931,  LBNL is the first National Laboratory and has had 13 Nobel prize winners on its staff.  It now employees 4400 scientists, engineers and administrators on a beautiful campus overlooking the San Francisco Bay.

You will be responsible for overseeing the full system lifecycle of the Power Conversion systems for electro-magnets, whether pulsed or continuous duty and range from tens of Watts to roughly 0.5 MW average. The Power Conversion equipment at ALS is responsible for accurate and low noise DC currents that correlate in like magnetic fields in electro-magnets, all within the framework of beam transport in an accelerator system. You will collaborate with other system engineers and scientists within the ALS, ALS-U (upgrade project), other divisions, DOE labs, and the international accelerator community.

This position will be hired at a level commensurate with the business needs; and skills, knowledge, and abilities of the successful candidate.

What You Will Do:

  • Given general instructions on new assignments and system developments for ALS and/or ALS-U:

    • Determine the scope and develop the plan.

    • Conduct Systems Analysis and develop the Requirements.

    • Create the System Design.

    • Conduct Development work.

    • Integrate and Test proto-types.

    • Direct the production and installation of power conversion equipment.

    • Support Operations and Maintenance of the system.

  • Collaborate across diverse technical fields (accelerator physics, magnet design, controls, facilities engineering) to develop specifications for high stability power supplies.

  • Develop circuit models to simulate power supply performance.

  • Participate in the design of and maintain power supply test stands, and develop test procedures including tuning of PID control loops.

  • Analyze power supply reliability and develop maintenance procedures based on MTBF for power electronics and associated hardware.

  • Work with technicians under minimal supervision to test power supplies for stability, reliability, and efficiency.

  • Participate in design reviews for the ALS, ALS-U and other projects.

  • Present periodic progress/status reports on the power supply effort.

  • Responsible for occasional 24/7 support, troubleshoot power electronics and power conversion circuits working with the Electronics Maintenance Technicians to diagnose and repair errant equipment.

  • Provide and maintain documentation of power electronics equipment.

  • Develop cost and schedule estimates for power electronics projects.

  • May have occasional foreign and domestic travel to attend reviews, visit vendors and attend conferences and workshops.


Additional Responsibilities as needed:

  • May work with other scientists and engineers to review and solve technical issues.

  • Design of power supply cable plants, power distribution, cooling and controls systems (including safety interlocks and programming of PLCs) to integrate a large number of power supplies with other complex equipment.D

  • Design of highly stable and reliable unipolar and bipolar power supplies.

  • Analysis, design, and troubleshooting of pulsed power systems including those based on solid state and/or thyratron switching.

  • Design of pulsed magnetics, including finite element analysis.

  • Participate in developing electrical safety procedures for high voltage, current and/or energy devices.

What is Required:

  • BSEE and a minimum of 5-year experience in power electronics, power supply or pulsed power R&D or design.

  • Demonstrated strong technical understanding and experience in power conversion engineering and has provided creative solutions to a range of issues.

  • Demonstrated strong technical understanding and knowledge base with the following technical areas:

    • High voltage, high current and high-frequency switching

    • Analog, logic and mixed-signal circuit design, analysis and simulation using SPICE, Simplorer, Saber, or similar.

    • Characteristics of and circuit design using power electronics devices including BJTs, MOSFETS, and IGBTs.

    • Integration of equipment into highly complex systems.

    • Single phase and poly-phase AC circuits and power distribution.

    • Communication and control theory, and PID controllers.

    • Knowledge of electrical codes and electrical safety such as NEC, LOTO and NFPA 70E.

  • Good written and oral communications skill and use of standard Office products such as Excel, Word, PowerPoint, and Project.

  • Demonstrated ability to make technical decisions, solves difficult problems, and interacts effectively within a diverse team.

  • CAD tools for schematic capture such as Orcad or Mentor Graphics and mechanical design such as AutoCAD or other 2D and solid modeling tools.


Desired Qualifications:

  • MSEE (preferred) and a minimum of 3 year experience with an emphasis on power electronics, power supplies or pulsed power R&D or design.

  • Electromagnetics design of inductors, high-frequency transformers, and high voltage/current/ frequency structures.

  • Electromagnetics analysis using FEA codes such as MAXWELL, OPERA or similar.

  • Thermal analysis and design, and the use of FEA codes.

  • Experience with vacuum tubes and thyratrons.

  • Systems control using PLCs, PXI or similar.

  • PCB layout and design.

  • Familiarity with particle accelerators.

  • Experience with the EPICS (Experimental Physics and Industrial Control System) toolkit is a plus.

  • Programming skills such as MATLAB, FPGA languages, C/C++, visual basic is a plus.


The posting shall remain open until the position is filled.


Notes:

  • This is a full time, 2 year, term appointment with the possibility of extension or conversion to Career appointment based upon satisfactory job performance, continuing availability of funds and ongoing operational needs.

  • Full-time, M-F, exempt (monthly paid) from overtime pay.

  • Salary is commensurate with experience.

  • This position may be subject to a background check. Any convictions will be evaluated to determine if they directly relate to the responsibilities and requirements of the position. Having a conviction history will not automatically disqualify an applicant from being considered for employment.

  • Work will be primarily performed at: Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA.


Learn About Us:

Working at Berkeley Lab has many rewards including a competitive compensation program, excellent health and welfare programs, a retirement program that is second to none, and outstanding development opportunities.  To view information about the many rewards that are offered at Berkeley Lab- Click Here.


Berkeley Lab (LBNL) addresses the world’s most urgent scientific challenges by advancing sustainable energy, protecting human health, creating new materials, and revealing the origin and fate of the universe. Founded in 1931, Berkeley Lab’s scientific expertise has been recognized with 13 Nobel prizes. The University of California manages Berkeley Lab for the U.S. Department of Energy’s Office of Science.


Equal Employment Opportunity: Berkeley Lab is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, or protected veteran status. Berkeley Lab is in compliance with the Pay Transparency Nondiscrimination Provision under 41 CFR 60-1.4.  Click here to view the poster and supplement: "Equal Employment Opportunity is the Law."

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Equal Employment Opportunity: Berkeley Lab is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, or protected veteran status. Berkeley Lab is in compliance with the Pay Transparency Nondiscrimination Provision under 41 CFR 60-1.4. Click here to view the poster and supplement: "Equal Employment Opportunity is the Law."

 

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The Lawrence Berkeley National Laboratory provides accommodation to otherwise qualified internal and external applicants who are disabled or become disabled and need assistance with the application process. Internal and external applicants that need such assistance may contact the Lawrence Berkeley National Laboratory to request accommodation by telephone at 510-486-7635, by email to eeoaa@lbl.gov or by U.S. mail at EEO/AA Office, One Cyclotron Road, MS90R-2121, Berkeley, CA 94720. These methods of contact have been put in place ONLY to be used by those internal and external applicants requesting accommodation.